[4] Mícheál Ó Muircheartaigh was born in Dún Síon just outside Dingle, County Kerry on 20 August 1930.

In September 1945 he began studying at Coláiste Íosagáin in Baile Bhúirne in the County Cork Gaeltacht where he was in training to be a teacher.

It was at this all-Irish school that his name changed from Michael Moriarty to the Irish version Mícheál Ó Muircheartaigh.

[8] In September 1948 he began the final year of his teacher training at St Patrick's College of Education in Drumcondra, Dublin.

[9]Ó Muircheartaigh was the one selected and his first assignment was to provide an all-Irish commentary on the 1949 Railway Cup final on St Patrick's Day.

He taught economics, accountancy and Irish in both primary and secondary schools throughout Dublin, the majority of which were run by the Christian Brothers.

For the early part of his broadcasting career Ó Muircheartaigh commentated on Minor GAA matches, in the Irish language.

[11] In 1990, Ó Muircheartaigh held an impromptu interview with Britain's Prince Edward, as his greyhound had won at the English Derby qualifier that he was commentating at.

[12] Ó Muircheartaigh's commentaries for RTÉ Radio 1's Sunday Sport show won him a Jacob's Award in 1992.

[17] On 29 October 2010, it was announced that the 2nd International Rules test at Croke Park would be Ó Muircheartaigh's final broadcast as commentator on RTÉ Radio 1.

On 30 October 2010, Ó Muircheartaigh commentated his final commentary alongside RTÉ's pundit and former Meath footballer Bernard Flynn.

Ó Muircheartaigh wrote a weekly sports column for Foinse, the Irish-language newspaper free with the Irish Independent each Wednesday.

[19] Ó Muircheartaigh was invited to read out a piece in Irish and in English at an event called "Laochra" in Croke Park on 24 April 2016 to commemorate the 100th anniversary of the Easter Rising.

[6] He was featured in the video "Mícheál Ó Muircheartaigh - Making a ham sandwich" which was posted on a Reddit forum, noting his "relaxing" voice.